zar

README

zar

zar is the zip-clone with tar-interface.

Download binaries

Motivation

• I often forget -r option on the native zip-interface
  • I prefer the tar-interface. But my colleagues do not know tar-archives. I have to use zip-archives.
• I want to know the filenames are encoded by UTF8 or not ?
  • The fifth field of the output that zar tvf indicates the encoding of the filename.
    • U ... UTF8
    • A ... NonUTF8(ANSI)
• Are The files contained correctly ?
  • zar --md5 -tvf show md5 checksum of contained files
  • zar --sha1 -tvf show sha1 checksum of contained files
  • zar --sha256 -tvf show sha256 checksum of contained files

$ zar --md5 -tvf zar-noversion-linux-amd64.zip
b52fa7c45800545279d3a8264484386b -rw-rw-rw-  694516 2021/10/23 00:28 U zar

Create an archive

• zar cvf ARCHIVE.zip [files...]
• zar cvf - [files...] > ARCHIVE.ZIP

The filename encoding is always set as UTF8.

Option

• --remove-files removes files from disk after adding them to the archive.
• -C DIRECTORY change directory

List an archive

• zar tvf ARCHIVE.zip [files...]
• zar tvf - [files...] < ARCHIVE.ZIP *

Option

• --md5 show MD5SUMs of contained files

Extract an archive:

• zar xvf ARCHIVE.zip [files...]
• zar xvf - [files...] < ARCHIVE.ZIP *

---

• Reading the archive file from STDIN is slow because the ZIP file has the file list in the tail of the archive and we have to make a temporary file to access randomly.
• By golang's "archive/zip" package.